Dynamic Voltage Recover (DVR)

Key Highlights of the Dynamic Voltage Recovery Solution

Eaton’s Cooper DVR is an optimal solution that helps eliminate short-duration voltage sag events, reduce production downtime, improve operational reliability, and protect critical loads in industrial facilities.

Key Features:

• Protect Equipment Against Instantaneous Voltage Sags: The DVR continuously monitors grid voltage and automatically compensates for voltage shortfalls when a voltage sag occurs, helping maintain stable output voltage for critical loads.
• Ultra-fast Response Time of Under 2 ms: Unlike generators or traditional UPS systems that require transfer time, the DVR detects and compensates voltage almost instantly, preventing production line shutdowns or equipment resets.
• Maintain Continuous Operation of Production Lines: Helps prevent incidents such as PLC resets, Variable Frequency Drive (VFD) faults, industrial robot shutdowns, SMT (Surface Mount Technology) electronic component assembly line stoppages, and CNC machine program loss. As a result, it significantly reduces downtime costs and production losses.
• More Effective than UPS for Short-duration Voltage Sag Events: In practice, more than 80% of power quality issues in factories are voltage sag events lasting only a few seconds, caused by factors such as grid short circuits, starting of large-capacity motors, switching of large loads, and transient faults on the distribution grid. DVR is specifically designed to handle these events at a significantly lower investment cost compared with large-capacity UPS systems.
• High Efficiency, Low Losses: The DVR operates in standby mode under normal voltage conditions, resulting in very low energy losses, helping save electricity and reduce operating costs.
• Highly Reliable Industrial Design: Advanced power electronics technology, high-speed DSP (Digital Signal Processor) control system, easy-to-maintain modular design, stable operation in harsh industrial environments, and suitable for factories requiring high 24/7 operational availability.

Practical Applications

The DVR solution is widely applied in factories and infrastructure facilities that require high power quality:

• Electronics and Semiconductor Manufacturing Plants: Semiconductor, PCB, SMT, LCD, and LED facilities.
• Industrial Manufacturing Plants: Automotive, precision mechanical manufacturing, CNC, and robotic automation facilities.
• Food and Pharmaceutical Industries: Packaging lines, industrial refrigeration systems, and quality control equipment.
• Critical Infrastructure: Airports, metro systems, hospitals, telecommunications facilities, and data centers.